A wallpaper steamer is an electrical device which boils water continuously in order to produce steam.
This steam is then allowed to pass through a narrow bore tube to a face plate.
[1] The wallpaper steamer was invented by Peter Ravenscroft Wilkins from Blackwell, Worcestershire, England.
Once the paste is rehydrated, it starts to lose its adhesive properties, allowing the wallpaper to be either pulled or scraped from the wall.
Wallpaper steamers have been more popular in places such as the UK and Europe using 230 V domestic electricity.